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Overview Client AsyncClient Run Helpers Run Trees Evaluation Schemas Utilities Wrappers Anonymizer Testing Expect API Middleware Pytest Plugin Deployment SDK

Language

Theme

PythonlangsmithtypesissueEvidenceSeriesMetricDefinitionfield

Attribute●Since v0.14

field

Copy

field: Optional[Literal['latency_seconds', 'first_token_seconds', 'total_tokens', 'prompt_tokens',

View source on GitHub

'completion_tokens'

,

'total_cost'

,

'prompt_cost'

,

'completion_cost'

,

'feedback_score'

,

'prompt_token_details.cache_creation'

,

'prompt_token_details.cache_read'

,

'prompt_token_details.ephemeral_1h_input_tokens'

,

'prompt_token_details.ephemeral_5m_input_tokens'

,

'prompt_token_details.audio'

,

'prompt_token_details.image'

,

'prompt_token_details.video'

,

'completion_token_details.reasoning'

,

'completion_token_details.audio'

,

'completion_token_details.image'

,

'completion_token_details.video'

,

'prompt_cost_details.cache_creation'

,

'prompt_cost_details.cache_read'

,

'prompt_cost_details.ephemeral_1h_input_tokens'

,

'prompt_cost_details.ephemeral_5m_input_tokens'

,

'prompt_cost_details.audio'

,

'prompt_cost_details.image'

,

'prompt_cost_details.video'

,

'completion_cost_details.reasoning'

,

'completion_cost_details.audio'

,

'completion_cost_details.image'

,

'completion_cost_details.video'

]

]

=

None